#include<bits/stdc++.h>
using namespace std;

int n;
map <int, int> mp;

int main()
{
    freopen("duel.in", "r", stdin);
    freopen("duel.out", "w", stdout);
    cin >> n;
    for (int i = 1; i <= n; i ++)
    {
        int a;
        cin >> a;
        mp[a] ++;
    }
    int last = 0;
    for (int i = 1; i <= 100000; i ++)
    {
        if (mp[i] == 0)
        {
            continue;
        }
        if (mp[i] > last)
        {
            last = mp[i];
        }
    }
    cout << last;
    return 0;
}
